Knowledge (Kitab Al-Ilm)
Dawud :: Book 25 : Hadith 3652
Narrated Zayd ibn Thabit:
I heard the Apostle of Allah (peace_be_upon_him) say: May Allah brighten a man who hears a tradition from us, gets it by heart and passes it on to others. Many a bearer of knowledge conveys it to one who is more versed than he is; and many a bearer of knowledge is not versed in it.